Reefroom ‘A’ Continued: The Overflow, part 2

Continuing from my previous post, which could be found here (putting together an internal overflow), I am going to illustrate a simple 1 hr project that can quiet down your overflow substantially.

So for the Silencer you need…

1. 1.5″ ABS or PVC pipe at 4″-6″
2. 2″ coupler
3. 2″ to 1.5″ reducer/bushing
4. 1.5″ ABS or PVC pipe at 1″-2″
5. 1.5″ end cap, with a 1/8″ hole in the middle

As for the silencer, this is how I managed complete it as there are multiple ways to accomplish this task:

You take a 1.5″ pipe and cut it in a 5″ or 6″ length. Some overflows may require you to have a shorter cut. For this application I had set it at 5″. You have to cut out the middle area, where the water will overflow into.  So you need to make cuts with your miter, and a Dremel just like above.

You also have to put together the bushing and 2″ coupler. You will attach it later on to the cut-out 5″ pipe.

Here is a tricky part… You must shave off a bit of the inside of that bushing so that a 1.5″ pipe could be fitted through the underside of the coupler.

When put together, it should look like a mushroom made out of pvc.

You also have to cap it from the top, so a 1″ to 2″ 1.5″ pipe is cut. You slip it into the bushing. A cap, that has a 1/8″ hole for air venting, is placed on top of that pipe.

Finally, you are to place the silencer into the top portion of the overflow. To make it fit inside the 2″ hole, I used rubber bands around the bottom of the silencer. This will provide enough thickness for the silencer to stay in place. You may have to find its silent point, but when you do, you will be amazed on how its quiet. If you have any questions, please don’t hesitate to email me at vlad@fragd.it